查询词典 formation

The main returns are as follows: 1. A set of water-saving, quick and safe rotary percussion self-contained drilling tools and drilling technique used in drought water scarce areas were developed under the new idea combine water-saving drilling with rotary percussion drilling, which includes pneumatic steel ball percussion device used see before formation water and water-saving hydraulic percussion device used see after formation water.

主要研究成果： 1、从&节水钻探&和&回转冲击钻进&相结合的新思路出发，研制了一套适用于干旱缺水地区的节水型回转冲击配套钻具及其钻进工艺方法，包括见到地层水之前使用的球体冲击器及见到地层水之后使用的节水型液动冲击器系统。

The formation cross sections of the complex between 〓 and quenchers were calculated by using collision complex model. It is found thatthe qualitative tendency of the formation cross sections of complex is inagreement with that of the measured quenching cross sections.

表明猝灭剂分子与〓可能经历了无垒反应过程。5 用碰撞络合物模型模拟了〓(0，4，0)与猝灭剂的碰撞猝灭过程，计算了〓(0，4，0)和一些分子体系的络合物生成截面并与实验猝灭截面相比较，发现计算结果与实验结果定性吻合。

The result is a detailed description of the formation of a protostar -- the early stage of a massive primordial star of our universe -- and the researchers' computer simulation, which has been called a "cosmic Rosetta Stone," sets the bar for further investigation into the star formation process.

这篇文章详细描述了原恒星的形成过程——它们是宇宙中大质量原始恒星的早期状态，他们称之为&宇宙罗塞塔石碑&的计算机模拟程序目的是要对恒星的形成过程做深入研究。

The presence of Pt significantly improved the resistance to γ′-Ni3Al formation, promoted selective oxidation of aluminum by preve nting the transport of other elements outwards to Al2O3 scale and resulted i n the formation of purer, slower-growing and more adherent Al2O3 scales, de laying the onset of scale spalling for two types of coatings and of oxide nodule s growth for the high aluminum activity coating.

Pt的存在，通过阻止合金元素穿过Al2O3膜向外扩散，形成更纯的、结合力更好的Al2O3膜。并且，Pt的存在抑制γ′-Ni3Al相的形成，推迟涂层的高温退化和高铝活度涂层中非铝氧化瘤的生长。

For metallogenic environments, the neotectonic movement and climate are 2 most important factors. The neotectonic movement controlled the exposure, weathering and migration of primary provenance, the formation of valleys, the evolution of river systems and topography, and etc. The climate factor played important roles in the whole history of gold placers, especially in the formation of secondary provenance, the sorting and concentration of placer gold, the conservation and regeneration of gold placers, and etc.

在成矿环境方面，新构造运动对砂金矿的形成演化具有重要控制作用，主要表现在促使原生源暴露地表、风化、迁移，控制河谷的发育、水系与地貌的变迁等；气候因素贯穿于砂金成矿全过程，尤其在次生物源的形成、砂金的分选、富集、保存、&再生&等方面发挥重要作用。

In addition this paper discusses the formation of pittings in the low current density area and the factors affecting the formation.

初步讨论了钛合金压气机叶片在电解加工中出现的一些表面缺陷问题。

The cleanup technology is restricted by the absurdity of pipe string structure, itcouldn't reflect the real deliverability in formation, and it can create second damagefor formation;Moreover, the cleanup technology is only used in thin oil well, itcouldn't get the deliverability by conventional well test for high pour point crude wellor heavy oil well.

现有的排液技术由于管柱结构设计不合理，无法将地层的真实产能体现出来，并且对地层易造成二次伤害；另外，该排液技术只能在稀油井使用，对于高凝油或稠油井，无法用常规试井的方法求取产能。

For this, the principle combined together according to the theories research and the fulfillment research, this text at topic set the foundation of activity research which carried on about three years up, the point which puts forward currently the study evaluation of the primary and junior high school foreign language reform should be, Be overing sex evaluation and formation evaluation to lay equal stress on under principle instruction, strengthen the research and the fulfillment which evaluates to the formation.

为此，基于理论研究和实践研究相结合的原则，本文在课题组进行了大约三年时间的行动研究的基础上，提出目前中小学外语学习评价改革的重点应当是，在终结性评价和形成性评价并重原则指导下，加强对形成性评价的研究和实践。

The greyish-green mudstone in the Member 4 of Quantou Formation richs in pyrite. The grey and grayish-black mudstone in the Member 1 of Qingshankou Formation is of Ostracods、Esthenaus fossils and grainy pyrite .

泉四段上部为灰绿色的泥岩，青一段下部为深灰色、灰黑色的泥岩，可见介形虫、叶肢介，部分层位见粒状黄铁矿分布。

The process formation of branched PE and the formation ofα-olefins were studied.

并且本文研制的α-二亚胺镍催化剂在聚合1h后仍保持较高的催化活性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。